What is the author's style in A White Heron by Sarah Orne Jewett?

Of all the technical aspects of this story, that of a young girl who must choose between revealing the location of a heron's nest to an appealing ornithologist and protecting the bird, none has proven more problematic to critics than point of view. Many readers have seen Jewett's abrupt and dramatic changes in point of view as a weakness and a sign of immature talent; however, more recently, readers have seen the shifts as intentional and effective. The story is told by an omniscient third-person narrator, that is, a narrator who is not present as a character in the story, but who looks out or down on the events and who can see more than the characters themselves see.